ABSTRACT Okra is africa origin tropical plant and widely cultivated in various tropic and subtropic countries. Purpose of this study to determine effect of potassium on okra growth and productivity at several shading levels, and obtain the best level of pottasium in okra culvatio on Riau Province. The study was conducted in the Horticulture UPT Agriculture Faculty, Univesity of Riau, on March-…